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A psychology professor has developed a workshop designed to reduce the apprehension of students taking university courses for the first time. All incoming freshmen take a standardized apprehension assessment which has resulted in a normal distribution with μ = 80 and o = 12. A random sample of n = 44 new freshmen who attended the professor's workshop obtained a M = 76. a. Using the four-step hypothesis testing procedure, test at a = .05 using a one-tailed test. b. What was the size of the effect? c. If an alpha level of a = .01 was used, would the statistical decision remain the same? Show a solution using the four-step hypothesis testing procedure

A psychology professor has developed a workshop designed to reduce the apprehension of students taking university courses for the first time. All incoming freshmen take a standardized apprehension assessment which has resulted in a normal distribution with μ = 80 and o = 12. A random sample of n = 44 new freshmen who attended the professor's workshop obtained a M = 76. a. Using the four-step hypothesis testing procedure, test at a = .05 using a one-tailed test. b. What was the size of the effect? c. If an alpha level of a = .01 was used, would the statistical decision remain the same? Show a solution using the four-step hypothesis testing procedure

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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A psychology professor has developed a workshop designed to reduce the apprehension of students taking university courses for the first time. All incoming freshmen take a standardized apprehension assessment which has resulted in a normal distribution with μ = 80 and o 12. A random sample of n = 44 new freshmen who attended the professor's workshop obtained a M = 76. a. Using the four-step hypothesis testing procedure, test at a = .05 using a one-tailed test. b. What was the size of the effect? c. If an alpha level of a = .01 was used, would the statistical decision remain the same? Show a solution using the four-step hypothesis testing procedure
Transcribed Image Text:A psychology professor has developed a workshop designed to reduce the apprehension of students taking university courses for the first time. All incoming freshmen take a standardized apprehension assessment which has resulted in a normal distribution with μ = 80 and o 12. A random sample of n = 44 new freshmen who attended the professor's workshop obtained a M = 76. a. Using the four-step hypothesis testing procedure, test at a = .05 using a one-tailed test. b. What was the size of the effect? c. If an alpha level of a = .01 was used, would the statistical decision remain the same? Show a solution using the four-step hypothesis testing procedure
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